Abstract
Non-medical use of doping substances is a serious problem in international sports, and it is an escalating problem. Mass spectrometry is the only authorized confirmation method according to the International Olympic Charter against Doping in Sports. Different screening procedures from drug of abuse test in society are used in sports because of the large array of substances to be detected within a day. Recent test results involve some doping cases with naturally occurring hormones. For such doping, criteria for the differentiation between doped and un-doped subject are needed. Individual based steroid testing was successfully applied to some current international sports events, and our methods uncovered the problem of dihydrotestosterone doping in top sports.
